| 摘要 |
<p>The invention relates to a mobile platform actuation system to be used for adjusting the depth of pools, as well as for covering the same when not in use. According to the invention, the system consists of a vertically adjustable plate which provides a pool with various depths, its actuation structure comprising two hydraulic cylinders (), four threads () tied to a mobile platform () at one end, and, at the other end, to the pool wall, each thread () being guided by some fixed pulleys () and one mobile pulley (), where the synchronous movement of the four threads () is performed by using hydraulic cylinders with bilateral rod, as well as by serially supplying the two hydraulic cylinders (), thus the use of an unblocking valve () in the structure of the hydraulic diagram allows the mobile platform to be kept in a constant position for a long time without switching on the hydraulic unit, as well as an increased safety level of the operation, aspect which occurs especially in winter, when the platform is positioned at the ground level, having the role of a cover, and, if the pool is wider, the mobile platform is divided into two or three sections, where each section is actuated by two hydraulic cylinders, the hydraulic unit being common.</p> |
